Flash Timeline
The absolute path
An absolute path starts with the name of the level into which the document is loaded and continues through the display list until it reaches the target instance. You can also use the alias _root to refer to the topmost Timeline of the current level. For example, an action in the movie clip california that refers to the movie clip oregon could use the absolute path _root.westCoast.oregon.
The first document to open in Flash Player is loaded at level 0. You must assign each additional loaded document a level number. When you use an absolute reference in ActionScript to reference a loaded document, use the form _levelX, where X is the level number into which the document is loaded. For example, the first document that opens in Flash Player is called _level0; a document loaded into level 3 is called _level3.
To communicate between documents on different levels, you must use the level name in the target path. The following example shows how the portland instance would address the atlanta instance located in a movie clip called georgia (georgia is at the same level as oregon):
_level5.georgia.atlanta
You can use the _root alias to refer to the main Timeline of the current level. For the main Timeline, the _root alias stands for _level0 when targeted by a movie clip also on _level0. For a document loaded into _level5, _root is equal to _level5 when targeted by a movie clip also on level 5. For example, if the movie clips southcarolina and florida are both loaded into the same level, an action called from the instance southcarolina could use the following absolute path to target the instance florida:
_root.eastCoast.florida
